SR 77 over Big Wash
Good Condition52 years old4,372 vehicles/day
Location
| State | Arizona |
| County | Pinal |
| Location | 8.9 Mi NE Jct SR 79 |
| Carries | SR 77 |
| Crosses | Big Wash |
| Coordinates | 32.61976, -110.80679 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 119.6 sq m |
| Main Spans | 3 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 4,372 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 06574 |